Power Boiler Basics
The purpose of a power boiler is to create steam by applying heat energy to water. The steam produced by the power boiler can be transferred through piping to a number of applications throughout industrial facilities. This module describes the purpose, design, operation, and key components of a power boiler.
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Learning Objectives
• Identify and describe the safety hazards and safe work practices associated with power boilers • Describe the purpose of a power boiler • Describe the methods of heat transfer within a power boiler • Identify and describe the different types of power boilers • Identify and describe the key components of the power boiler • Differentiate between the three most common power boiler pressure component arrangements: “A,” “D,” and “O.” • Identify and describe different power boiler designs based on fuel-type • Describe typical maintenance considerations for power boilers
Specs
| Course Level | Intermediate |
| Languages | English, Portuguese, French, Polish, Russian |
| Compatibility | Audio, Video |
| Based on: | Industry Standards and Best Practices |
Key Questions
What is a power boiler?
Power boilers take the chemical energy stored in fuel, convert it to heat energy in the combustion process, and transfer that heat energy to water to produce steam. The transfer of energy from combustion gases to the water and steam is called heat transfer.
What are three methods of heat transfer in a power boiler?
Radiation, convection, and convention.
What are two types of power boilers?
Fire tube boilers and water tube boilers.
What are common designs for the pressure components of power boilers?
A, D, and O.
Sample Video Transcript
The major components of a high-pressure water tube power boiler are the furnace, which is the area of the boiler where combustion of the fuel takes place. The steam drum is the upper header to which the tubes are connected. Water enters through this drum, and steam generated in the boiler is collected there. The mud drum is the bottom header connected to the tubes. Its purpose is to collect any solids that settle out of the water, and to allow circulation of water and steam through the tubes. Depending on the boiler design, there may be more than one lower header. The generating tube bank produces the high-pressure steam at saturation temperature, and the super heater adds more temperature to the steam that is produced in the boiler.
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